These entries are queried from radb.net using whois, you can try my project getting these.
:AS46901 route: 12.152.228.0/24 descr: CVPH Plattsburgh origin: AS46901 mnt-by: MAINT-AS11722 changed: ekreckel [at] westelcom.net 20170725 #15:40:23Z source: RADB last-modified: 2023-11-13T15:51:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source